How transform all ‘NaN’ string in double NaN for each rows

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gcicceri
gcicceri 2020-9-10
评论： Ameer Hamza 2020-9-10
Hi guys,
I have this table:
Date A B C D
'03-Jan-2005' 'NaN' 583 'NaN' 217
'04-Jan-2005' 872 586 'NaN' 219
'05-Jan-2005' 873 578 'NaN' 221
'06-Jan-2005' 888 572 'NaN' 222
'07-Jan-2005' 881 'NaN' 'NaN' 223
'10-Jan-2005' 879 564 'NaN' 222
My question is:
how to transform all 'NaN' value that I find in my table rows in a numeric(double) format?
Thank you very much for your answers.

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回答（2 个）

KSSV
KSSV 2020-9-10
Let T be your table.
T.C = str2double(T.C) ;
  1 个评论
gcicceri
gcicceri 2020-9-10
Thanks for the answer, but mine is just an example and my request is in case the 'NaN' values appear in several rows and columns.

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Ameer Hamza
Ameer Hamza 2020-9-10
Try str2num() for this case: https://www.mathworks.com/help/releases/R2020a/matlab/ref/str2num.html
T.C = str2num(T.C);
  2 个评论
gcicceri
gcicceri 2020-9-10
Thanks for the answer, but mine is just an example and my request is in case the 'NaN' values appear in several rows and columns.
Ameer Hamza
Ameer Hamza 2020-9-10
Can you attach the actual table in a .mat file? In your question, Column A and B contain 'NaN' and double values. However, such mixing of data types is not possible in Matlab (unless it is a column of cells). Attaching the file will be helpful in this case.

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